Power-driven vehicle



Sept. 11, 1928. 1,683,776 1 H. HERRMANN POWER DRIVEN VEHICLE Filed July15, v 192'! Patented Sept. 11, 1928.,

UNITED STATES PATENT OFFICE.

nnnmIcE momma, or. ESSEN, GERMANY, assmnoa 'ro FRIED. xnnrr Alumnsmut-sonata, or ESSEN-ON-THE-BUHR, GERMANY.

-rownn-muvmr VEHICLE.

' Application filed my 13, 1921, Serial 110. 205.522, and in'Gcrmany m14, 1926.

This invcntionrelates'to coolers for the engines of power-drivenvehicles and has for its object to provide at least two fans for thecooler, one of which fans is directly 5 driven by the engine or byapower transmitting member permanently connected to the engine, whilstthe other fan is driven by another transmitting member permanentlyconnected to the wheels of the vehicle.

An embodiment of the subject-matter of the invention is diagrammaticallyillustrated in the accompanying drawing by way of example. The drawingshows the parts of the vehicle in question, Fig. 1 being a lateral 15view and Fig. 2 the corresponding top view thereof.

The vehicle is driven by a Diesel engin A. gearing C, being connected tothe latter by means of a disengageable clutch B.

The wheels of the vehicles are driven by the shaft E, on which thegearing is loosely mounted, through connecting rods F. The

gearing C has two bevel wheels 0 and a,

Fig. 2.'in mesh with a common bevel wheel 0 The bevel wheels 0 c areloose on their shaft and may be coupled thereto by a clutch q either forforward or backward running.

he cooler intended tome-cool the cooling water of the Diesel engineconsists of two nests of tubes H and H, towhich cooling air is suppliedby fans J and J respectively. Fan J is in connection with the engineshaft through the intermediary of a shafting K, whilst fan J is drivenfrom a spur wheel a fast on gear shaft 0, by

means of a shafting K. Owing to the provision of the reversegearingp 0%.the engine shaft and gear shaft 0 located between clutch B and bevelwheel a permanently rotate in the same sense; consequently the fans J Jrotate likewise in one and the same direction both with forward andbackward running of the vehicle, so that a throw'over gear for the fansis rendered superfluous. The described arrangement affords the furtheradvantage, that. when the clutch B is disengaged, at least one of thefans is always in operation for cooling purposes both when the vehicleis at rest and the engine is running idly, and when the engine is atrest and the vehicle is running downhill.

What I claim as my invention and desire to secure by Letters Patent. is

1. In a power-driven wheeled vehicle, an

artificially cooled driving engine, a disengageable coupling betweensaid engine and the driven axles of the vehicle, means for re-coolingthe cooling agent used, said means the other to be driven from saidaxles of the vehicle.

3. In a power-driven wheeled vehicle, an artificially cooled drivingengine, a transmission gearing interposed between said engine andthe'driven axles of the vehicle, a disengageable coupling arrangedbetween the engine shaft and the shaft of said gearing, means forre-cooling the cooling agent used, said means comprising two fans, oneof them being adapted to be driven from the engine shaft and the otherto be driven from said axles through the intermediary of said gearing.

4. In a power-driven wheeled vehicle, an artificially cooled drivingengine, a reverse gearing interposed between said engine and the drivenaxles of the vehicle, a disengageable coupling arranged between theengine shaft and said reverse gearing, means for re-cooling the coolingagent used, said means comprising two fans, one of them being coupledwith the engine shaft and the other being coupled with a shaft, of saidreverse gearing whose direction of rotation is constant.

' 5. In a Diesel locomotive, a Diesel engine, a reverse gearinginterposed between the shaft of said engine and the driven axles of thelocomotive, a disengageable coupling arranged between the engine shaftand said reverse gearing, a cooling arrangement for said engine. andmeans for re-cooling the cooling agent used. said means comprising a iradiator for the cooling agent and a plurality of fans co-operating withsaid radiator,

part of which is adapted to be driven from the shaft of said engine andpart to be driven from a shaft of said reverse gearing Whose directionof rotation is constant.

6. In 9. Diesel locomotive, :1 Diesel engine, a reverse gearinginterposed between the shaft of said engine and the driven axles of thelocomotive, a disengageahle coupling 5 arranged between the engine shaftand said reverse gearing, a cooling arrangement for said engine, andmeans for re-cooling the cooling agent used, said means comprising aradiator for the cooling agent and two fans asagna Cologne, Germany,this 21st day of June,

HEINRICH HERRMANN.

